摘要
本文提出了一种基于防复印底纹的文档保护方法。其中,防复印底纹包括背景图案区域和标记图形单元区域,标记图形单元的形状和位置关系代表了安全标识信息。同时提出了一种快速的安全标识信息识别算法。实验表明,该算法效率较高,实现简单,占用资源较少,适于嵌入到图像复制设备的硬件芯片中,从而达到对安全文档实时保护的目的。
In this paper, based on the anti-copy shading, a document protection method is proposed, in which the anti-copy shading includes background pattern area and label graphic unit area. The shape and position of label graphic unit represent the security identifier information. In addition, a fast algorithm is proposed to detect the security identifier information. Extensive experimental results show that the algorithm is adapt to be embedded into the hardware chip of image copying equipment to achieve the real-time protection for the security document with high efficiency, easy implementation, and fewer resource resuming.
出处
《中国印刷与包装研究》
CAS
2009年第2期16-21,共6页
China Printing Materials Market
关键词
防复印
安全印刷
形状数
图像处理
标记图形单元
Anti-Copy
Security printing
Shape number
Image processing
Label graphic unit
